#55978D
Closest named color: Grey Teal (#5E9B8A). oklch(62.9% 0.07 183.2), rgb(85, 151, 141).
Aa
Black text reads best on this color (6.19:1).
About this color
#55978D is a medium-light, muted teal or cyan. In OKLCH its lightness is 63%, its chroma 0.070 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.017 away. Black text reads best on it, at 6.19:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.19:1 |
| White text | 3.38:1 |
Values
| HEX | #55978D |
| RGB | rgb(85, 151, 141) |
| HSL | hsl(171, 28%, 46%) |
| OKLCH | oklch(62.9% 0.07 183.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #55978D | 3.38:1 | AA large text | Lc -66.7 | Content text, not long reading |
| Black text on #55978D | 6.19:1 | AA | Lc 42.8 | Non-text elements, placeholder text |
| #55978D text on white | 3.38:1 | AA large text | Lc 61.2 | Content text, not long reading |
| #55978D text on black | 6.19:1 | AA | Lc -40.5 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDDDA
oklch(88.4% 0.019 184.2)
-
Step 300
300
#A9C8C3
oklch(80.8% 0.034 184.7)
-
Step 400
400
#7AACA4
oklch(70.7% 0.054 183.7)
-
Step 500
500 (this color)
#55978D
oklch(62.9% 0.07 183.2)
-
Step 600
600
#378278
oklch(55.7% 0.076 183.5)
-
Step 700
700
#296E65
oklch(49.2% 0.07 183.4)
-
Step 800
800
#245952
oklch(42.6% 0.058 183.7)
-
Step 900
900
#234A44
oklch(37.8% 0.046 182.6)
-
Step 950
950
#152B28
oklch(27% 0.029 184.5)
#55978D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #91908D | 0.074 |
| Deuteranopia (no green cones) | #86888E | 0.070 |
| Tritanopia (no blue cones) | #3A9994 | 0.021 |
| Achromatopsia (no color) | #8B8B8B | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55978D
#55978D
oklch(62.9% 0.07 183.2)
- #AD7785
#AD7785
oklch(62.8% 0.07 2.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #55978D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.017
- Sea #3C9992 ΔE 0.020
- Dull Teal #5F9E8F ΔE 0.024
- Dusty Teal #4C9085 ΔE 0.024
- Persian Green #2A9D8F ΔE 0.032
- Cadet Blue #5F9EA0 ΔE 0.034
- Blue Green #0F9B8E ΔE 0.039
- Slate Green #658D6D ΔE 0.046
Use #55978D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.